I'm fine with the randomness of legendaries and that some are much better than others, just as long as they don't tune raids, mythic+, or any content around the expectation that people have x-legendaries. The same goes for maxing out artifact weapons. Love the system, just as long as raids aren't tuned around it. Unfortunately they haven't done this, and it's creating problems as we move deeper into the expansion. Nighthold (mainly mythic) has created problems for raiding guilds due (in part) to this issue. We have great reliable raiders who have a wealth of experience, but not all of them have the time to max out 1-2 artifact weapon specs, nor the time to farm up legendaries. Alts are out of the equation entirely this time around if you're trying to maintain decent raid progression and manage all of the things that go with that, such as retention, motivation, etc. Mythic Emerald Nightmare had a nice natural progression. Mythic Nighthold does not.

LOLZ again at legendaries, they really think that adding or upgrading a little the offstats like that, that wuld make the legendary the same power as the BiS legendaries who change greatly a spec, they did'nt realize that no-bis legendarie are just epic item with big stat, its nothing more

Patch 7.2 attempts to narrow the gap further. You shouldn't feel like you need a specific legendary item to do content. If you have multiple legendary items, you should feel like you have a choice.

Who's betting I still need the best ones for Resto Shaman? Sorry but from what I've seen on adjustments it looks like some are still best in slot and there is barely any choice.

A life with no changes can’t be called life. You can only call it experience. Lelouch Vi Britannia. (Code Geass)
I refuse to be a slave of fate! I will be the master of my own future! Shir Gold. (Phantasy Star 2)
Being second is to be the first of the ones who lose. Ayrton Senna. (3 times Formula 1 World Champion)

LOLZ again at legendaries, they really think that adding or upgrading a little the offstats like that, that wuld make the legendary the same power as the BiS legendaries who change greatly a spec, they did'nt realize that no-bis legendarie are just epic item with big stat, its nothing more

Adding more stats to Prydaz made it one of the top Resto Shaman legendaries. Plus it is good, though not BiS for most classes.

The sets give you a reason to run different content to complete the set.

The small two set pieces like the one in Arcway and Court of Stars are cool.

That's why nobody is touching them right? Because they are cool.... oh wait.

Does the itemization team even know what they are doing sometimes?

A life with no changes can’t be called life. You can only call it experience. Lelouch Vi Britannia. (Code Geass)
I refuse to be a slave of fate! I will be the master of my own future! Shir Gold. (Phantasy Star 2)
Being second is to be the first of the ones who lose. Ayrton Senna. (3 times Formula 1 World Champion)

The stats/reforging / 2ndary stas issue , it will be amazing when Blizz figures out how to make EVERYTHING that drops, Spec specific like they do for Tier sets. They could even make it 1 spec per token.
Example* I get a token for a ring , I am in Assassination spec. I can either "use" the item in my current spec OR switch specs to Sub or Outlaw, the token for that ring will STAY stated for whatever Spec I "cashed it in/used" it in.
THey could even keep it Top 3 stats for the spec, so there is some wiggle for Stat weight changes during an xpac/tier
ilvl STILL is not a clear indicator of what is best for your spec. in a lot of cases. even 20-30 ilvl increases.

I call BS on that dev's entire statement because of the tokens from raid bosses. You can't equip a TOKEN at all. You have to go turn it in to get usable gear.

The dev team is either just completely oblivious or purposefully deceitful in trying to justify something they want to do that doesn't make logical sense. They can't support it with logic, so they really should just honestly say that's the way they want it to be so deal with it. That's really what they're doing, but they're hoping they can trick players into believing it's better when it really isn't.

The biggest problem with itemization currently is Titanforged allowing gear to swing too much in ilvl for a given difficulty. If Titanforging went away (or was capped at reasonable increases, say +5 for warforged, +10 for titanforged), players would get natually geared by doing progressively more difficult content.

Its hard to balance gear or get meaningful progression when you can have random items jump 30-40 item levels.